n: 40 m: 258 packed: 13 density: 0 nodes: 0 solveTime: 2260 buildTime: 40 solved: true
{0,14,20}
{1,5,39}
{2,18,30}
{3,11,29}
{4,34,36}
{6,7,12}
{8,19,25}
{9,16,24}
{10,22,31}
{13,23,38}
{15,17,26}
{21,27,28}
{32,33,37}